Tell the court that the other party received a summons or other legal papers in a civil case that were delivered to (served on) that party. This document is a receipt acknowledging payment received from an individual or entity.The sample acknowledgement letters for receipt of payment provided below can be used as format templates for official and personal purposes. We'll show you how with 5 acknowledgment email reply samples and a completely customizable template. Acknowledgement Letters for Receipt of Payment. This document is a receipt acknowledging payment received from an individual or entity. A sample filled-in form with instructions is available in the Forms section of this guide. Your application will be considered incomplete if the required information is not filled out in its entirety. For more information on becoming a member of USA North 811, fill out the form below!! If your company has a valid EUC, you will not be prompted to fill out this form.